One day, when Geordie was several years old, we were out for a

walk when a neighbor saw us and said, “You are so lucky that your dog walks nicely on a leash!  We just got a new puppy, and all she does is pull and pull.”  Lucky?  Really?  I know she had to have seen us slogging around  this neighborhood, regardless of the season, all to exercise my beast and try to get him to heel.  Three years of walking several miles each week and coaching my boy every step of the way

No, luck had nothing to do with it.